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使用HybREAD480识别非结核性菌根菌的MolecuTech REBA Myco-ID的性能评估

Jee Ah Kim, Hui-Jin Yu, Yu Yean Hwang

Clinical laboratory

|July 12, 2023

概括

MolecuTech REBA Myco-ID测定准确地识别了常见的非结核性菌根菌 (NTM) 物种,包括区分M. abscessus亚种. 然而,罕见的NTM物种可能被错误识别,M. lentiflavum与M. gordonae.交叉反应.

科学领域:

微生物学微生物学
临床诊断临床诊断临床诊断
分子生物学分子生物学

背景情况:

准确识别非结核性真菌菌 (NTM) 对于管理NTM疾病至关重要.
MolecuTech REBA Myco-ID是一种用于NTM物种识别的线索探测试.
HybREAD480仪器自动化了PCR后的测试步骤.

研究的目的:

在与HybREAD480自动化系统一起使用时,评估MolecuTech REBA Myco-ID测试的性能.
评估NTM识别试验的分析和临床准确性.

主要方法:

使用74个参考菌株 (65个Mycobacterium,9个非Mycobacterium) 确定了分析特异性.
用192个临床Mycobacterium菌株来评估临床性能.
测试结果与基于多基因测序的排型进行了比较.

主要成果:

该试验与参考菌株的准确率为77.0%,与临床菌株的准确率为94.3%.
通常孤立的NTM物种,包括M. avium复合物和M. abscessus亚种,被正确识别.
M. lentiflavum菌株一直被误认为是M. gordonae.

结论:

使用HybREAD480的MolecuTech REBA Myco-ID对常见的NTM识别和区分M. abscessus亚种非常准确.
限制包括罕见的NTM物种的潜在错误识别.
M. lentiflavum和M. gordonae之间的交叉活性是一个显著的限制.

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